ORCID Profile
0000-0003-0929-954X
Current Organisations
Max Planck Institute for Polymer Research
,
Australian Bureau of Meteorology
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Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5CP07792C
Abstract: Lamellae produced by ascorbyl-dodecanoate in water during the coagel-to-gel phase transition. The compact and crystalline structure is collapsing and transforms into the gel state.
Publisher: AIP Publishing
Date: 14-02-2018
DOI: 10.1063/1.5017278
Abstract: We present an experimental investigation of specific-ion effects in non-aqueous solvents, with the aim of elucidating the role of the solvent in perturbing the fundamental ion-specific trend. The focus is on the anions: CH3COO−& F−& Cl−& Br−& I−& ClO4−& SCN− in the solvents water, methanol, formamide, dimethyl sulfoxide (DMSO), and propylene carbonate (PC). Two types of experiments are presented. The first experiment employs the technique of size exclusion chromatography to evaluate the elution times of electrolytes in the different solvents. We observe that the fundamental (Hofmeister) series is observed in water and methanol, whilst the series is reversed in DMSO and PC. No clear series is observed for formamide. The second experiment uses the quartz crystal microbalance technique to follow the ion-induced swelling and collapse of a polyelectrolyte brush. Here the fundamental series is observed in the protic solvents water, methanol, and formamide, and the series is once again reversed in DMSO and PC. These behaviours are not attributed to the protic/aprotic nature of the solvents, but rather to the polarisability of the solvents and are due to the competition between the interaction of ions with the solvent and the surface. A rule of thumb is proposed for ion specificity in non-aqueous solvents. In weakly polarisable solvents, the trends in specific-ion effects will follow those in water, whereas in strongly polarisable solvents the reverse trend will be observed. Solvents of intermediate polarisability will give weak specific-ion effects.
Publisher: Elsevier BV
Date: 06-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7SC02691A
Abstract: Consistent trends in ion-specificity across many solvents.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9SC90050K
Abstract: Correction for ‘What is the fundamental ion-specific series for anions and cations? Ion specificity in standard partial molar volumes of electrolytes and electrostriction in water and non-aqueous solvents’ by Virginia Mazzini et al. , Chem. Sci. , 2017, 8 , 7052–7065.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CP03701J
Abstract: We present a machine learning approach based on artificial neural networks for the prediction of ion pair solvation energies.
Publisher: American Chemical Society (ACS)
Date: 25-07-2018
Publisher: Wiley
Date: 25-05-2016
Abstract: Specific ion effects on the kinetics of iodination of acetone in an acidic medium are investigated by UV/Vis spectrophotometry as a function of nature of the acid and temperature. The results indicate that the order of the reaction with respect to acetone is practically unaffected by the composition of the acid while the value of the mixed constant k1 K increases according to the sequence HBr<HCl<HClO4 <HF<H2 SO4 <H3 PO4 . The results are discussed in terms of the hydration free energy and size of the anion and of the interaction between the cationic intermediate and the anion.
Location: Italy
No related grants have been discovered for Virginia Mazzini.